Question

write a program to input an integer and display whether it is a prime numbers or not.​

Answer 1

Answer:

C program?

Explanation:

Totally not sure, but good luck!

Answer 2

Answer:

The answer is given in explanation part

Explanation:

#include<stdio.h>

Void main() {

int n, i, flag = 0;

printf("Enter a positive integer: ");

scanf("%d", &n);

for (i = 2; i <= n / 2; ++i) {

// condition for non - prime

if (n % i == 0) {

flag = 1;

break;

}

}

if (n == 1) {

printf("1 is neither prime nor composite.");

}

else {

if (flag == 0)

printf("%d is a prime number.", n);

else

print f("%d is not a prime number.", n);

}

return 0;

}